NCT06274905

Brief Summary

This study aims to assess if EMLA or ethyl chloride spray are effective in reducing the pain associated with local anaesthetic administration in cutaneous surgery of the head and neck compared to a placebo and control group through a randomized control trial study design.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
124

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Feb 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 20, 2023

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 7, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 7, 2023

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

January 27, 2024

Completed
27 days until next milestone

First Posted

Study publicly available on registry

February 23, 2024

Completed
Last Updated

February 23, 2024

Status Verified

February 1, 2024

Enrollment Period

5 months

First QC Date

January 27, 2024

Last Update Submit

February 15, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Pain score

    The primary outcome measure is patient reported pain on a numeric rating scale (NRS)(1; no pain, 10; worst pain imaginable) recorded after LA administration

    The pain score is measured essentially immediately after administration of the local anaesthetic (within 20 seconds of administration).

Secondary Outcomes (1)

  • Patient satisfaction

    The overall patient satisfaction score is measured essentially immediately after the operation had concluded (within 20 seconds of completion).

Study Arms (4)

EMLA cream

EXPERIMENTAL

EMLA cream 5% 25g lidocaine, 25g prilocaine; Astra Zeneca. Topically applied followed by Tegaderm dressing to cover. Length of duration monitored and recorded as part of study

Drug: EMLA

EMLA placebo

PLACEBO COMPARATOR

Aqueous cream ((Ultrapure Laboratories®️, Mayo, Ireland) applied topically followed by covering with Tegaderm dressing. Length of duration monitored and recorded as part of study

Drug: Aqueous cream BP

Ethyl chloride spray

EXPERIMENTAL

Ethyl chloride spray (Cryogesic®, Fannin Ltd, Dublin, Ireland). Applied topically to surgical site prior to LA injection. Spray at distance of 5-10cm for 4-8 seconds until skin slightly blanched and the fluid allowed to evaporate.

Drug: Ethyl chloride

Control group

NO INTERVENTION

No intervention administered

Interventions

EMLADRUG

EMLA cream

EMLA cream

Ethyl chloride

Ethyl chloride spray

Aqueous cream

EMLA placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Aged at least 18 years
  • Receiving surgery to cutaneous tissues of the head and neck
  • Procedure performed under local anaesthetic

You may not qualify if:

  • Paediatric patients
  • Surgery performed under general anaesthetic
  • Mucosal operative site (e.g. oral cavity)
  • Significant cognitive impairment (e.g. severe dementia)
  • Known sensitivity/allergy to EMLA
  • History of a pain disorder (e.g. complex regional pain syndrome).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital Waterford

Waterford, X91 ER8E, Ireland

Location

MeSH Terms

Conditions

Acute PainHead and Neck NeoplasmsSkin Neoplasms

Interventions

Ethyl Chloride

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsNeoplasms by SiteNeoplasmsSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

Hydrocarbons, ChlorinatedHydrocarbons, HalogenatedHydrocarbonsOrganic Chemicals

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Single blinding (for participants) only for patients receiving EMLA or EMLA placebo.
Purpose
TREATMENT
Intervention Model
SEQUENTIAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

January 27, 2024

First Posted

February 23, 2024

Study Start

February 20, 2023

Primary Completion

July 7, 2023

Study Completion

July 7, 2023

Last Updated

February 23, 2024

Record last verified: 2024-02

Data Sharing

IPD Sharing
Will not share

Locations